package collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class NewForDemo {
    public static void main(String[] args) {
        String[] array={"one","two","three","four","five"};
        for (int i=0;i<array.length;i++){
            System.out.println(array[i]);
        }
        for (String str:array){//str表示的是数组中的每个元素
            System.out.println(str);
        }

        Collection c=new ArrayList();
        c.add("one");
        c.add("two");
        c.add("three");
        c.add("four");
        c.add("five");
        Iterator it=c.iterator();
        while (it.hasNext()){
            String str=(String)it.next();
            System.out.println(str);
        }
        for(Object obj:c){//元素类型 变量名：集合或数组
            String  str=(String)obj;
            System.out.println(str);
        }

    }
}
